胃袋

1. Origins, structure, and basic meaning

• Structure: 胃袋 is read as いぶくろ and is a noun for the stomach that can also stand figuratively for appetite or eating capacity.
• Basic usage: Use 胃袋が刺激される for appetite aroused by a smell and 胃袋が大きい for a large eating capacity.

2. Common pitfalls and similar expressions

• Body part and metonymy
  • It does not always mean the organ anatomically; in food contexts it can stand for appetite or capacity.
• Difference from お腹
  • お腹 broadly covers the belly, hunger, and fullness, while 胃袋 evokes the stomach or eating capacity more concretely.